60% (1989)

0% (1989)

60% (2006)

20% (1999)

50% (1984)

83% (1996)

0% (2001)

65% (2005)

60% (2003)

50% (1978)

50% (1967)

0% (1966)

0% (1994)

30% (1999)

50% (1977)

0% (1999)

0% (1985)

0% (1985)

0% (1974)

30% (1990)